HIP 54597 b
HIP 54597 b is a cold gas giant orbiting the K5 V star HIP 54597 in the constellation Hydra. It lies about 130 light-years from Earth and was discovered in 2023 using the radial velocity method.
Is HIP 54597 b in the Habitable Zone?
The position of HIP 54597 b relative to the habitable zone of HIP 54597 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on HIP 54597 b — one full orbit around HIP 54597 — lasts 3,274.0 Earth days, longer than an Earth year. It orbits at an average distance of 4.000 AU. Its orbit is nearly circular (eccentricity 0.030).
How Was HIP 54597 b Discovered?
HIP 54597 b was discovered in 2023 using the radial velocity method, with observations from La Silla Observatory.
The radial velocity method measures the subtle wobble of a star caused by the gravitational pull of an orbiting planet, visible as periodic shifts in the star's light spectrum. The size of the wobble reveals the planet's minimum mass.
How Far Away Is HIP 54597 b?
HIP 54597 b is 129.6 light-years (39.7 parsecs) from Earth. Light arriving here tonight left the planet around the year 1897. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 2,280,960 years to make the journey.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. HIP 54597 b scores 0.08, ranking #4,645 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: HIP 54597
HIP 54597
- Spectral type
- K5 V
- Mass
- 0.80 M☉
- Age
- 4.3 billion years (Sun: 4.6)
Planetary System
HIP 54597 b is the only planet known to orbit HIP 54597 so far.
HIP 54597 b — Complete Data
| Mass | 762.79 Earth masses (2.400 Jupiter masses) |
|---|---|
| Orbital period | 3,274.00 days |
| Orbital distance | 4.000 AU |
| Eccentricity | 0.030 |
| Earth Similarity Index | 0.08 |
| Distance from Earth | 129.6 light-years (39.7 parsecs) |
| Constellation | Hydra |
| Discovery method | Radial Velocity |
| Discovery facility | La Silla Observatory |
| Discovery year | 2023 |
Data: NASA Exoplanet Archive, last updated 2023-09-05. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HIP 54597 b
Is HIP 54597 b habitable?
HIP 54597 b is not known to orbit within the habitable zone of HIP 54597, and as a cold gas giant it is an unlikely candidate for life as we know it.
How far away is HIP 54597 b?
HIP 54597 b is about 130 light-years from Earth in the constellation Hydra. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 2,280,960 years to get there.
How long is a year on HIP 54597 b?
One orbit around HIP 54597 takes 3,274.0 Earth days.
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